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<blockquote data-quote="SinCitySound" data-source="post: 6602564" data-attributes="member: 618443">I am in the process of setting up a system in my &#039;01 4.7L V8 Durango. The system is going to include:Kenwood KVT-514 HU w KNA-G510 GPS unitRockford T1000-1bd for the subsRockford T-400-4 for the mids &amp;amp; highs3 12&quot; Alpine Type R subs in a ported box4 6.5&quot; P1S652 speakers for the doorsI am considering installing a 2nd battery and isolating it so that I can run the system when the truck is off w out worrying about killing the starting battery and also so that I don&#039;t have to worry about the batteries killing each other. I have the stock alternator in the vehicle which I think runs at 136 AMPs.My questions are:1) Is a 140 AMP isolator good enough? Should I go with something larger like a 200 AMP one?2) What&#039;s the difference between say a Stinger 200 Amp Battery Relay Isolator SR200 SGP32 (<a href="http://cgi.ebay.com/Stinger-200-Amp-Battery-Relay-Isolator-SR200-SGP32_W0QQitemZ310190044513QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4838c47561" target="_blank">eBay</a>) and a NOCO IGD-200HP (<a href="http://cgi.ebay.com/ebaymotors/200-AMP-Battery-Isolator-guard-RV-Truck-USA-made-NOCO_W0QQcmdZViewItemQQhashZitem518dcee012QQitemZ350271496210QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories" target="_blank">eBay</a>)?3) Which type of isolator would be best for what I am looking to do?Thanks in advance!</blockquote>

[QUOTE="SinCitySound, post: 6602564, member: 618443"] I am in the process of setting up a system in my '01 4.7L V8 Durango. The system is going to include: Kenwood KVT-514 HU w KNA-G510 GPS unit Rockford T1000-1bd for the subs Rockford T-400-4 for the mids & highs 3 12" Alpine Type R subs in a ported box 4 6.5" P1S652 speakers for the doors I am considering installing a 2nd battery and isolating it so that I can run the system when the truck is off w out worrying about killing the starting battery and also so that I don't have to worry about the batteries killing each other. I have the stock alternator in the vehicle which I think runs at 136 AMPs. My questions are: 1) Is a 140 AMP isolator good enough? Should I go with something larger like a 200 AMP one? 2) What's the difference between say a Stinger 200 Amp Battery Relay Isolator SR200 SGP32 ([URL="http://cgi.ebay.com/Stinger-200-Amp-Battery-Relay-Isolator-SR200-SGP32_W0QQitemZ310190044513QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item4838c47561"]eBay[/URL]) and a NOCO IGD-200HP ([URL="http://cgi.ebay.com/ebaymotors/200-AMP-Battery-Isolator-guard-RV-Truck-USA-made-NOCO_W0QQcmdZViewItemQQhashZitem518dcee012QQitemZ350271496210QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories"]eBay[/URL])? 3) Which type of isolator would be best for what I am looking to do? Thanks in advance! [/QUOTE]

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